+Shadow's Posted May 13, 2007 Share Posted May 13, 2007 Does anyone know of a strong flashing strobe light that is battery operated, small enough to be placed in a water proof container? Quote Link to comment
O-Mega Posted May 13, 2007 Share Posted May 13, 2007 Does anyone know of a strong flashing strobe light that is battery operated, small enough to be placed in a water proof container? I picked up some flashing lights at walmart in the party section that are about the size of a nano-cache that are magnetic. There were four in a package for a couple of dollars and they come with batteries. O-Mega Quote Link to comment
+Miragee Posted May 13, 2007 Share Posted May 13, 2007 I have one that I got for kayaking. It works on one D-cell battery and is waterproof. The little light is very bright. I think I got it on eBay, but boating shops should sell them. Is that the kind of light you need? Quote Link to comment
+Skytracker Posted May 13, 2007 Share Posted May 13, 2007 You can find some really bright LED strobes, but I'm not from your area so couldn't recommend a vendor. Any electronics hobby store should do. These things are really stingy on power consumption. Give us a clue about what you're plotting Quote Link to comment
+Shadow's Posted May 13, 2007 Author Share Posted May 13, 2007 A underwater multi cache Quote Link to comment
+EScout Posted May 13, 2007 Share Posted May 13, 2007 What you want is an LED flashing light. The cheapest are the red ones with 3 to 5 LEDs in a clear red reflective case made for bicycle riders. They have a clip for attaching to your clothing. I have found them in two sizes depending if they use 2 AAA or 2 AA batteries. I usually find them at the 99Cents Only store for 99 cents. There is one that has 5 LEDs and runs on 2 AAA. It says that it runs for 100 hours. It has 6 different flash modes, flashing the 5 LEDs in different sequences. I have a friend who programed and installed a chip in one and it now flashes words that I specified, in Morse code. For longer run time, use multiple D cells in parallel and series, and use only one LED bulb. Quote Link to comment
+Shadow's Posted May 13, 2007 Author Share Posted May 13, 2007 What you want is an LED flashing light. The cheapest are the red ones with 3 to 5 LEDs in a clear red reflective case made for bicycle riders. They have a clip for attaching to your clothing. I have found them in two sizes depending if they use 2 AAA or 2 AA batteries. I usually find them at the 99Cents Only store for 99 cents. There is one that has 5 LEDs and runs on 2 AAA. It says that it runs for 100 hours. It has 6 different flash modes, flashing the 5 LEDs in different sequences. I have a friend who programed and installed a chip in one and it now flashes words that I specified, in Morse code. For longer run time, use multiple D cells in parallel and series, and use only one LED bulb. Do you know how he did that? I want somthing that I can place in a air tight container and let it float just below the serface of the lake so it can be seen about dusk. I will use a total of 4 of these in this cache. Thanks and let me know about that chip. Rick Quote Link to comment
+Skytracker Posted May 13, 2007 Share Posted May 13, 2007 If you put a photo-electric cell in the circuit you can wire it so it will only operate at night. This will give much longer battery life. Quote Link to comment
+Cpt.Blackbeard Posted May 14, 2007 Share Posted May 14, 2007 Wouldn't a flashing light attract muggles? Quote Link to comment
+Shadow's Posted May 14, 2007 Author Share Posted May 14, 2007 I am hoping that with it below the serface of the water the light will not be able to be seen untill you are on top of it. No boats normaly get on this small string of lakes/man made river. So hopefully no they wont. Quote Link to comment
+dkwolf Posted May 14, 2007 Share Posted May 14, 2007 I am hoping that with it below the serface of the water the light will not be able to be seen untill you are on top of it. No boats normaly get on this small string of lakes/man made river. So hopefully no they wont. That right there is cause enough for concern in my book. If you could say boats NEVER get on this string of lakes/man made river, I'd say go for it, but since there is a chance of a random night fisherman coming along and seeing a box with a flashing light in it submerged just below the surface.... See where I'm going? Calling out the bomb squad is expensive. Bringing in a marine minesweeper? Can't be cheap. The second thing that concerns me is the 'string of lakes/man made river' bit. What exactly is this body of water? Water storage area behind a dam...cooling lake for a nuke plant...etc. Basically, is it somewhere that might cause problems for cachers seeking the cache? Quote Link to comment
+Shadow's Posted May 14, 2007 Author Share Posted May 14, 2007 I am hoping that with it below the serface of the water the light will not be able to be seen untill you are on top of it. No boats normaly get on this small string of lakes/man made river. So hopefully no they wont. That right there is cause enough for concern in my book. If you could say boats NEVER get on this string of lakes/man made river, I'd say go for it, but since there is a chance of a random night fisherman coming along and seeing a box with a flashing light in it submerged just below the surface.... See where I'm going? Calling out the bomb squad is expensive. Bringing in a marine minesweeper? Can't be cheap. The second thing that concerns me is the 'string of lakes/man made river' bit. What exactly is this body of water? Water storage area behind a dam...cooling lake for a nuke plant...etc. Basically, is it somewhere that might cause problems for cachers seeking the cache? This is a park area that the city has made. Basic runoff area the city has also made pumps to keep it moving. In the 8 years I have been going to this park I have seen only 2 boats and both paddle boats. No moter boats allowed. The area I am looking at is on the largest and the last of the string. 100% of the fishing is from docks. Quote Link to comment
+TreeSqueezers Posted May 14, 2007 Share Posted May 14, 2007 100 hours is good battery life for an LED light, but it is still only 100 hours. That would mean replacing the batteries every 4 days. Have you considered a solar recharger of some type? Quote Link to comment
+rogueleader1977 Posted May 14, 2007 Share Posted May 14, 2007 (edited) Recomeneded these to someone before. Still haven't tried them myself. They work under water and claim to last for 10 years w/o needing a battery: http://www.glowrings.com/ Edited May 14, 2007 by rogueleader1977 Quote Link to comment
+Shadow's Posted May 14, 2007 Author Share Posted May 14, 2007 Thanks for all the good info. New twist, what do you think My son called me today and said he was going to throw some broken yard lights away, wanted to know if I had any use for them . I went over and got them, and they still work. See what I am thinking about. My only thoughts here are 1. taking them apart and adding to a water tight container 2. can I get a brighter led to replace the ones on them 3. Will the solar pannel charge battery while in the water. 4. Where can I get 4 more broken yard lights Quote Link to comment
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